Why does the screen turn completely white in render view when using 2.8 eevee?
This may be too late, but someone might find it handy if a search lands them here.

I just had this issue. My computer crashed and when I re-opened the file I had been working on, everything was white. Zooming way out made it seem like it was a giant bloom effect in the middle of the scene.

I tried reopening the file multiple times without luck, but what did fix it was opening a different file. I spent a moment panning around that scene, switched render views, then re-opened the file with the issue.

The bloom was gone, so I assume it was just bug that was cleared when I opened the other file.